Novak Djokovic of Serbia plays a backhand against Aljaz Bedene of Slovenia in his first round match of the 2015 Australian Open at Melbourne Park on Tuesday. Photograph: Quinn Rooney/Getty Images......

World number one and defending champion Serena Williams has been given the top seeding for the US Open, organisers announced on Tuesday.Belarussia's Victoria Azarenka, who beat Williams in Sunday's......

Roger Federer and Novak Djokovic faced fired-up Frenchmen and partisan crowds at Roland Garros on Friday, and took differing routes to negotiate safely past them into the fourth round of the Grand......